TORONTO, Feb 28 (Reuters) - Toronto Stock Exchange S&P/TSX composite index .GSPTSE :
* Falls 533.07 points, or 3.19 percent, to 16,184.37 at open.TORONTO, Feb 28 (Reuters) - Toronto Stock Exchange S&P/TSX composite index .GSPTSE :
* Unofficially closes down 454.39 points, or 2.72 percent, at 16,263.05.